Safety-cock for gas-ranges.



S. GITTLER.

SAFETY COCK FOR GAS RANGES.

APPLICATION FILED MAII. 9. I9I.

Patented Nov, 28, 1916.

2 SHEETS-SHEET l.

S. GITTLER.

SAFETY cocK Foa GAS RANGES. APPLICATION FILED MAR. 9. 1916.

Patented Nov. 28, 1916.

l2 SHEETS-SHEET 2.

Sidney GiH'lm", 33313 712,5 Stimme SIDNEY GITTLER, OF BROOKLYN, NEW YORK.

SAFETY-COCK FOR GAS-RANGES.

Application filed March 9, 1916.

T0 all whom t may concern Be it known that I, SIDNEY GITTLER, a citizen of the United States, residing at 17 7 0 Park Place, Brooklyn, in the county of Kings and State of New York, have invented a new and useful Safety-Cock for Gas-Ranges, of which the following is a specification.

My invention relates to improvements in safety cocks for gas ranges, and it consists in the novel features hereinafter more fully described.

rlhe objects of my improvement are: First. To provide a safety cock for gas ranges, which could not be opened by children or by brushing against it inadvertently thereby preventing accidents frequently due to the vmanipulation of the usual gas cocks in ranges by children. Second. To have the controlling means of the mechanism of the safety cock for gas ranges hidden from View and inclosed by the plug of the gas cock. Third. To have said mechanism serve also as a means for regulating the amount of opening of the gas cock. Fourth. To have the resistance to releasing the mechanism of the safety cock for gas ranges sufliciently great to be beyond the power of children to overcome it. Fifth. 'llo have said safety cock for gas ranges simple, durable and inexpensive. l attain these objects by the mechanism illustrated in the accompanying drawings or by any mechanical equivalent or obvious modification of the same.

In the drawings Figure 1 is a longitudinal vertical section by a plane passing through the axis of the seating of my safety cock for gas ranges. Fig. 2 is a plan of the seating of one form of my safety cock for gas ranges, with the plug removed, and showing a circular series of grooves or notches 31, 31, hereinafter described. Fig. 3 is an end elevation of my safety cock for gas ranges, looking toward the left in Fig. 1. Fig. 4 is a horizontal section of the plug on the line C-D of Fig. 1 passing through the horizontal arm 25 of the bell crank lever 23 and the lower end 24a of the push rod 24,' hereinafterY described. Fig. 5 is a plan of the seatingl J of another form of my safety cock for gasfpgof the plug 14, transversely thereto,

ranges with the spigot end broken away and showing a ratchet 33 secured to the Specification of Letters Patent.

Serial No. 83,065.

upper face of the seating instead of the series of grooves 31, shown in Figs. 1, 2 and 3. 6 is a side elevation of the form of my safety gas cock shown in Fig. 5, with the ratchet 33 in place.

Similar numerals and letters refer to simi lar parts throughout the several views as follows:

11 is the seating of the safety cock; it is shown in Figs. 1, 2 and 3 as having on its upper face a circular series of grooves or notches 31, 31.

12 is the socket end of the seating and 13 is the corrugatedy spigot end of the seating, both of usual construction.

14 is the plug of the safety cock, the lower end of which is of the usual form; it is kept in place by the set screw 17 and washer 18., located under the seating 11.

15 is the handle of thev plug 14, formed in one with the knob 16 at the upper end of said plug 14.

19 is the gas passage through the plug 14; 20 is the gas passage through the seating 11; 21 is the end of said passage 20 through the spigot; it is shown in Figs. 1 and 3 as reduced in diameter.

22 is a round passage transversely through the plug 14 above the seating 11, which opening serves as a housing for part of the mechn anism of my safety gas cock, as hereinafter described. This passage 22 may be conveniently formed by drilling a. hole in a plug of a standard gas cock. i

23 is a bell crank lever having a vertical arm or click 2. a, the end of which is adapted to engage the grooves 31 in the form of my device shown in Figs. 1, 2 and 3, or the ratchet 33 inthe form of my device shown in Figs. 5 and 6; it also has a horizontal arm 25, which terminates in a fork pivotally connected bymeans of a pin 27 to the lower end 24a of a vertical push rod 24, which passes through a suitable vertical opening in the plug 14 and has a sliding fit therein. .Said rod 24 terminates at its upper end in a head 30. 26 is the spindle, on whichV said bell crank lever 23 oscillates; it is journaled at its two ends in the walls of said passage 22 28 Y an enlargement at the upper end of the vertical. opening, through which said rod Patented Nov. 23, 19116.

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24 passes; it may be formed by drilling a vertical hole in said knob 16 of the plug 1l of the gas cock. 29 is a compression spring located in said enlargement 28; it is shown as encompassing the upper end of said rod 24, and abutting against the underside of the head 30 of said rod 24, thereby tending to raise said rod 2li, and thereby acting upon said.V bell crank levery 23 in such a way as to keep the end of the click, 232L in one of the notches or grooves 31 shown in Figs. 1, 2 and 3, or in contact with the ratchet 33, shown in- Figs. and 6, on the upper face ofthe seating 11, andthereby preventing the turning of said plug 14. 32 are two apertures in the walls of said passage 22 of the plug 14, to allow the passing of the pin 27 y,therethrough when Vassembling the mechamsm. Y

Both thespindle 26 andthe pin 27 are shownasriveted over at their ends, to prevent their displacement.

y The ratchet 33 is shown in Fig.y 6 as having its teeth formed on the. outer edge of an annular plate, which may be secu-red to the upperfface of the seating' 11 either by sol- Y dering or in any other: suitablemanner.

The spaces between the teeth of the ratchet 33 can be milled out or formed in any other manner; and I designate them inthe claims as grooves, the same as the grooves or notches. 31.

To release the click 23a it is necessary to depress the head 30 of the rod 24s against the direct pressure of the spring 29, without any leverage to assist in overcoming thev resistance. ofsaid spring 29; it is evident, therefore, that a springy of a comparatively small size mayV offer a sufficiently great resistance to be beyond the strength of' a child to overcome it, and depress said rod24. o

Fig. 5. shows Jf he ratchet 33 as consisting of two pairk of quadrants, with the teeth in each pair of quadrants inclined in opposite. directions, and witha single groovey or notch 31 at the meeting point of the pair of quadrants; each of these grooves 31 is situated above. the middle. point of the` Side of the seating 11, and they correspondto the position of the click 23a., when the gascock is'closedand the handle. 1.5 of the Vplug 14.

Vso

is at right. angles toV the position thereof shown in the drawings.. It is evident that with the form of my device, shown in` Figs. 5 ,and 6, rit will .be necessary to press the head ,30. of the.. rod 24E only for opening the gas cock; the inner edge of. the. click 23u .will pass over the teeth of the. ratchet'33 when .closing the gas cock.. 'This is designed to enable a person to close the: gas cock in a hurry also tok avoid touching the head 3,0 ofthe rod v24, which may behot, when it is necessary to close the gas cock.

The head is shown in the drawings as having a Asmaller diameter than said enlarged opening 28, for the sake of clearness; but it can be formed so tight fitting and of such a shape as to appear like the top of the knob 16, without suggesting to children that there is any mechanism underneath it to meddle with.

The passage 22 is shown in the drawings as extending through the entire thickness of the plug; but it may extend only part of the way therethrough7 if desired, to prevent children from putting their fingers thereinto through the open end, which may also be plugged, if desired.

The rod 241 may be located in the handle 15.` of the plug, if desired, and its motion transmitted to the bell crank lever 23 by means of a suitable link and levers4 inclosed in said plug.

Many other changes could be made in the design of my safety cock for gas ranges within the scope of my invention; as for example z-A tensile spring may be employed to act on the rod 24, which may be used as a pulling rod instead of a push rod.

In the form of my device, shown in Figs. 1, 2 and 3,. the `grooves or notches 31, instead of extending in a series through a complete circumference of a. circle, as. shown, may eX- tend only through part of the circumference, and the number of notches 31 may even be reduced to one, if desired; the grooves or notches. 3 1 may also be formed in any convenient part of the seating other than the upper face thereof; the click 23n may be rigidly connected to the rod 2lby means of a suitable bar, instead of being pivoted to the plug 14 and having its horizontal arm pivotally connected to. said rod 24E.

In the form of my device shown in Figs. 5v and 6 only one or two of the quadrants of the ratchet 33 may be used, if desired. Also only some of the features of my device may be employed, thereby securing part of the advantages thereof.

I do not, therefore, restrict myself to the exact shape of my safety cock for gas ranges as shown in the drawings, but I intend to include also all mechanical equivalents and obvious modifications thereof.

That I claim as my invention, and desire to secure by Letters Patent is:

1. In a safety cock for gas ranges a seat ing, a. pluga pair of ratchets on said seating, the teeth in each of said ratchets. being inclined in opposite directions, a single groove or notch at the meeting point of said ratchets, a click, pivot-ally connected to said plug and adapted to fit the grooves between the teeth of said ratchets and into said single groove or notch, a controlling rod slidably connected to said plug and operatively connected to said click, thereby keeping said click in position in said grooves, a click, adapted to t the grooves between and a means for resisting the motion of said the teeth of said ratchets, and a controlling rod in suoli a direction as to remove said means adapted to keep said Click in position 13 click from said grooves. in said grooves, thereby allowing the closing 2. In a safety cock for gas ranges a pair of said gas cock and resisting the opening of A of ratehets having their teeth laterally eX- said gas Cock.

tending and inclined in opposite directions, SIDNEY GITTLER.

Gopies of this patent may be obtained for five cents each,by addressing the "Commissioner of Patente, Washington, D. U." 

